CN202659389U - Valve base for hand oil pump - Google Patents
Valve base for hand oil pump Download PDFInfo
- Publication number
- CN202659389U CN202659389U CN 201220272385 CN201220272385U CN202659389U CN 202659389 U CN202659389 U CN 202659389U CN 201220272385 CN201220272385 CN 201220272385 CN 201220272385 U CN201220272385 U CN 201220272385U CN 202659389 U CN202659389 U CN 202659389U
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- CN
- China
- Prior art keywords
- valve seat
- oil pump
- hand oil
- seat
- valve base
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses a valve base for a hand oil pump. A plurality of flowing cross sections for reducing oil flowing resistance are arranged at the center of the valve base made of plastics; an O-shaped ring for sealing is arranged on a side wall of the valve base made of plastics; and the O-shaped ring is used for sealing the valve base and a matching surface of a pump cavity. The valve base for the hand oil pump has the advantages that the flowing cross section of an internal check valve in the hand oil pump is increased, the oil flowing resistance is reduced and the difficulty in production processing is reduced.
Description
Technical field
The utility model relates to a kind of auto parts and components, is specifically related to a kind of hand oil pump valve seat.
Background technique
On the diesel engine; state's diesel engine of discharging more than three particularly; on the diesel oil prefilter all with hand oil pump; the function of hand oil pump is when engine shutdown; by manually back and forth pressing hand oil pump; by the check function of internal one-way valve, the diesel oil in the fuel tank is pumped into filter cleaner, with the Bas Discharged of filter cleaner.The one-way valve that uses on the hand oil pump at present is the support umbrella valve, valve seat need to guarantee when non-return and rubber umbrella shape valve seal, valve seat and pump chamber fitting surface also will seal simultaneously, when engine operation, because umbrella valve standard-sized sheet, need less circulating resistance, this is just to wish that valve seat can have larger flow area.At present, valve seat on the derv fuel filter cleaner in the hand oil pump all is the metallic aluminium material, the shortcoming of this metallic aluminium valve seat is: 1. the roughness because of the face that will guarantee to contact with umbrella valve and side requires high, need to reach Ra1.6, carry out fastening and sealing owing to using to be press-fitted simultaneously, diameter tolerance requires high, so processing cost is high; 2. wall thickness can not be too thin in the metal working process, otherwise will cause difficulty in process; But thicker structural design will cause the flow area of oil little, and resistance is large.
Summary of the invention
The utility model purpose is to provide a kind of hand oil pump valve seat for the existing deficiency of prior art, and the flow area that it improves the hand oil pump internal check valve reduces oily circulating resistance, has reduced the difficulty of production and processing.
In order to solve these problems of the prior art, the technological scheme that the utility model provides is:
A kind of hand oil pump valve seat, the center of the valve seat that is made of plastics is provided with several flow areas that can reduce oily circulating resistance, the side of described plastic seat is provided be used to the O type circle that seals, and described O type circle is used for the sealing between valve seat and pump chamber fitting surface.
Detailed technological scheme is: a kind of hand oil pump valve seat, the center of the valve seat that is made of plastics is provided with several flow areas that can reduce oily circulating resistance, the side of described plastic seat is provided be used to the O type circle that seals, described O type circle is used for the sealing between valve seat and pump chamber fitting surface, the two ends of described plastic seat are provided with claw, described claw catches on the pump chamber valve seat orifice plastic seat is fixed in the pump chamber, the described flow area that several can reduce oily circulating resistance is included in six set on the described plastic seat nearly trapezoidal flow areas, also is provided with a plurality of gear shape flow areas at the center edge of described plastic seat.
Than solution of the prior art, the utility model advantage is:
The described hand oil pump valve seat of the utility model, the better plasticity of utilizing plastics to have, more various moulding is set at the valve seat center, thereby enlarge the cross section of oil circulation, can increase flow area approximately 19%, thereby greatly reduced circulating resistance, and for the roughness that reduces the side but can satisfy dimension precision requirement simultaneously, used O type circle to seal in the side of plastics.In addition, what the location use was adopted is the claw at plastic seat two ends, and claw catches in the pump chamber valve seat orifice, has reduced assembling difficulty.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described:
Fig. 1 is the schematic cross-section of hand oil pump valve seat among the utility model embodiment;
Fig. 2 is the composite structure schematic diagram of hand oil pump valve seat and umbrella valve among the utility model embodiment;
Wherein: 1, O type circle; 2, plastic seat; 3, claw; 4, umbrella valve; 5, nearly trapezoidal flow area; 6, gear shape flow area; 7, manhole.
Embodiment
Below in conjunction with specific embodiment such scheme is described further.Should be understood that these embodiments are not limited to limit the scope of the invention for explanation the present invention.The implementation condition that adopts among the embodiment can be done further adjustment according to the condition of concrete producer, and not marked implementation condition is generally the condition in the normal experiment.
Embodiment:
The present embodiment has been described a kind of hand oil pump valve seat, the cross section of valve seat as shown in Figure 1, the center of the valve seat 2 that is made of plastics is provided with the flow area that several can reduce oily circulating resistance, the described flow area that several can reduce oily circulating resistance is included in setly on the plastic seat 2 has six nearly trapezoidal flow areas 5, is provided with a plurality of gear shape flow areas 6 at the center edge of described plastic seat 2.
The structure that described plastic seat 2 and the combination of umbrella valve 4 are installed as shown in Figure 2, the central position of plastic seat 2 is provided with for the fixing manhole 7 of umbrella valve 4, umbrella valve 4 passes manhole 7 and is fixed on the plastic seat 2.Be provided be used to the O type circle 1 that seals in the side of plastic seat 2, the sealing that described O type circle 1 is used between valve seat and pump chamber fitting surface, the two ends of described plastic seat 2 are provided with claw 3, and described claw 3 catches on the pump chamber valve seat orifice plastic seat is fixed in the pump chamber.
Above-mentioned example only is explanation technical conceive of the present invention and characteristics, and its purpose is to allow the people who is familiar with technique can understand content of the present invention and according to this enforcement, can not limit protection scope of the present invention with this.All equivalent transformations that Spirit Essence is done according to the present invention or modification all should be encompassed within protection scope of the present invention.
Claims (3)
1. hand oil pump valve seat, it is characterized in that, the center of the valve seat that is made of plastics is provided with several flow areas that can reduce oily circulating resistance, and the side of described plastic seat is provided be used to the O type circle that seals, and described O type circle is used for the sealing between valve seat and pump chamber fitting surface.
2. a kind of hand oil pump valve seat according to claim 1 is characterized in that, the two ends of described plastic seat are provided with claw, and described claw catches on the pump chamber valve seat orifice plastic seat is fixed in the pump chamber.
3. a kind of hand oil pump valve seat according to claim 1, it is characterized in that, the described flow area that several can reduce oily circulating resistance is included in six set on the described plastic seat nearly trapezoidal flow areas, also is provided with a plurality of gear shape flow areas at the center edge of described plastic seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220272385 CN202659389U (en) | 2012-06-11 | 2012-06-11 | Valve base for hand oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220272385 CN202659389U (en) | 2012-06-11 | 2012-06-11 | Valve base for hand oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202659389U true CN202659389U (en) | 2013-01-09 |
Family
ID=47454298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220272385 Expired - Lifetime CN202659389U (en) | 2012-06-11 | 2012-06-11 | Valve base for hand oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202659389U (en) |
-
2012
- 2012-06-11 CN CN 201220272385 patent/CN202659389U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SUZHOU DIFITE (SIP) CO., LTD. Free format text: FORMER NAME: SUZHOU INDUSTRIAL PARK, DIFITE CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 215123, No. 22, Sheng Sheng Road, Sheng Town, Suzhou Industrial Park, Jiangsu Patentee after: The special filtering technique limited company of Suzhou Tamiflu Address before: 215126 No. 22 Sheng Road, Suzhou Industrial Park, Jiangsu, China Patentee before: DIFITE (SIP) Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20130109 |
|
| CX01 | Expiry of patent term |